QUETTA, Pakistan-A strong earthquake struck before dawn Wednesday in southwestern Pakistan, killing at least 150 people, injuring scores more and leaving an estimated 15,000 homeless, officials said.The death toll was expected to rise as reports arrived from remote areas of Baluchistan, the impoverished province bordering Afghanistan where the magnitude 6.4 quake struck.The worst-hit area appeared to be Ziarat, where hundreds of mostly mud and timber houses had been destroyed in five villages, Mayor Dilawar Kakar said. Some homes were buried in a landslide triggered by the quake, he said."There is great destruction. Not a single house is intact," Kakar told Express News television.Maulana Abdul Samad, the minister for forests in Baluchistan, said at least 150 people were confirmed to have died. Kakar said hundreds of people have been injured and some 15,000 were homeless.